For those who discover you can't make edits to sure documents, see What you can do during the Office apps on an Android, iOS, or Windows mobile system having an Office 365 subscription. Remember a 1-time buy Edition of Microsoft 365​​​​​​​ is licensed for just one install only. For help https://felixkxelr.eedblog.com/26744268/the-greatest-guide-to-microsoft-office-2021